Matthew Stemm, M.D.
NPI 1538470539 · Anatomic Pathology & Clinical Pathology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Stemm, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Chicago, IL (NPI 1538470539).
Provider details
- NPI number
- 1538470539
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 125-058666 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,492 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 864 | $35 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 308 | $26 |
| Protein Measurement, Serum84165 | 251 | $17 |
| Cell Examination of Specimen, Selective Cellular Enhancement Technique88112 | 181 | $26 |
| Immunologic Analysis Technique on Serum (immunofixation)86334 | 180 | $17 |
| Evaluation of Fine Needle Aspirate With Interpretation and Report88173 | 178 | $65 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-06-24
- Last updated
- 2010-06-24
Frequently asked questions
- What is Matthew Stemm's NPI number?
- Matthew Stemm's National Provider Identifier (NPI) is 1538470539, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Stemm's specialty?
- Matthew Stemm is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Stemm located?
- Matthew Stemm's practice location on file with NPPES is 1653 W. Congress Parkway, Chicago, IL 60612.
- What is Matthew Stemm's phone number?
- The practice phone number listed in the NPPES registry for Matthew Stemm is (262) 347-8623.
- Does Matthew Stemm accept Medicare?
- Matthew Stemm is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Stemm's NPI active?
- Yes — Matthew Stemm's NPI (1538470539) is active in the NPPES registry as of the last update on 2010-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.